Basic Steps for Making a Glass Painting
2. If you are not going to oven cure your finished painting then you need somewhat rough surface. Firing in a kiln can help oil paints dry and adhere better otherwise paints tend to peel or chip off. This can be countered by roughening up the surface a little with wet or dry sandpaper. Roughing the surface in this manner will help the paint adhere better and last longer.
3. Select a pattern which has clear outlines with minimum possible curves and pointed corners.
4. Trace the pattern on a piece of paper which is exactly the size of the glass piece. The pattern should be drawn exactly at the center with at least 1 or 1-1/2 inches margin on all sides.
5. Keep the glass on the patterned piece of paper aligning them perfectly.
6. Make outlines of the pattern on the glass with the help of glass liner. Use black glass liner for maximum clarity. These borders help in holding the wet colors within them and avoid spilling of the paints.
9. Now use the colors to fill in the pattern with uni-directional strokes. Avoid taking too much of paint or spilling it. Any corner or part that is not painted can be seen from the reverse side by lifting up the glass. Be careful, not to hold the glass vertically to avoid dripping off the colors.
10. If any bubbles are made in the colors while painting, then pierce them with needle or a pin. They can also be gently brushed towards the outlines bringing them out of the borers and then wiping them away with nail polish remover.
11. Avoid applying two coats of paint in any portion of the pattern.
12. Allow the painting to dry for at least 24 hours.
13. After the painting has dried, place it in a cold oven. Set the oven to 160 deg C (325F). When temperature reaches 160C, time it for 40 minutes. Switch off the oven and allow it to cool. Once the oven is cold, remove the Glass Painting.
15. You can use beads, glitter, and sequins into the wet paint before it dries for decorating the painting.